Insulation

We have a huge range of insulation from all the top brands, covering all applications from floor, roof, loft, wall and more. Browse below or contact Build4less on Live Chat or by phone 020 3481 1978 if you need guidance
Window and Door Filler Untied 200m Roll
Window and Door Filler Untied 200m Roll - Sheepwool Insulation
Vendor
Sheepwool
Regular price
£69.95 £83.94
Sale price
£69.95 £83.94
Regular price
£0.00
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per 
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Sheepwool Loose Wool - 5Kg Pack
Sheepwool Loose Wool - 5Kg Pack - Sheepwool Insulation
Vendor
Sheepwool
Regular price
£41.88 £50.26
Sale price
£41.88 £50.26
Regular price
£0.00
Unit price
per 
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Karma Acoustiwall 3 - 30mm x 1.2m x 1m
Karma Acoustiwall 3 - 30mm x 1.2m x 1m - Karma
Vendor
Karma
Regular price
£56.45 £67.74
Sale price
£56.45 £67.74
Regular price
£0.00
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Karma Acoustiwall 2 - 24mm x 1.2m x 1m
Karma Acoustiwall 2 - 24mm x 1.2m x 1m - Karma
Vendor
Karma
Regular price
£35.55 £42.66
Sale price
£35.55 £42.66
Regular price
£0.00
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Karma Regupol 6010SH
Karma Regupol 6010SH - Karma
Vendor
Karma
Regular price
from £330.90 £397.08
Sale price
from £330.90 £397.08
Regular price
£0.00
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per 
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Karma Visco 600 (36mm x 2400mm x 600mm)
Karma Visco 600 (36mm x 2400mm x 600mm) - Karma
Vendor
Karma
Regular price
£74.30 £89.16
Sale price
£74.30 £89.16
Regular price
£0.00
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per 
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Spacetherm A1 Blanket - 10mm x 2400mm x 1200mm
Spacetherm A1 Blanket 10mm x 2400mm x 1200mm - Proctor Building Materials
Vendor
Proctor
Regular price
£252.71 £303.25
Sale price
£252.71 £303.25
Regular price
£0.00
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per 
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Celotex 20mm TB4020 2.4m x 1.2m
Celotex 20mm TB4020 2.4m x 1.2m - Celotex Wall Insulation
Vendor
Celotex
Regular price
£15.45 £18.54
Sale price
£15.45 £18.54
Regular price
£0.00
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per 
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Celotex XR4200 200mm x 2.4m x 1.2m (Pallet of 12)
Celotex XR4200 200mm x 2.4m x 1.2m (Pallet of 12) - Celotex Insulation
Vendor
Celotex
Regular price
£948.00 £1,137.60
Sale price
£948.00 £1,137.60
Regular price
£0.00
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Acuphon PhonoDeck Tri35s Structural Acoustic Overlay Board - 35mm x 600mm x 2400mm
Acuphon PhonoDeck Tri35s Structural Acoustic Overlay Board - 35mm x 600mm x 2400mm - Acuphon
Vendor
Acuphon
Regular price
£57.44 £68.93
Sale price
£57.44 £68.93
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£0.00
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Acuphon PhonoDeck 28 Acoustic Overlay Board - 28mm x 600mm x 2400mm
Acuphon PhonoDeck 28 Acoustic Overlay Board - 28mm x 600mm x 2400mm - Acuphon
Vendor
Acuphon
Regular price
£39.81 £47.77
Sale price
£39.81 £47.77
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£0.00
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Acuphon PhonoDeck 24 Acoustic Overlay Board - 24mm x 600mm x 2400mm
Acuphon PhonoDeck 24 Acoustic Overlay Board - 24mm x 600mm x 2400mm - Acuphon
Vendor
Acuphon
Regular price
£38.29 £45.95
Sale price
£38.29 £45.95
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£0.00
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Acuphon PhonoDeck Micro 17 Slimline Acoustic Overlay Board - 17mm x 1200mm x 600mm
Acuphon PhonoDeck Micro 17 Slimline Acoustic Overlay Board - 17mm x 1200mm x 600mm - Acuphon
Vendor
Acuphon
Regular price
£20.60 £24.72
Sale price
£20.60 £24.72
Regular price
£0.00
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Acuphon PhonoLay Acoustic Foam Underlay - 10mm x 1.2m x 48m (57.6m2 Roll)
Acuphon PhonoLay Acoustic Foam Underlay - 10mm x 1.2m x 48m (57.6m2 Roll) - Acuphon
Vendor
Acuphon
Regular price
£260.88 £313.06
Sale price
£260.88 £313.06
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£0.00
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Acuphon PhonoLay Acoustic Foam Underlay - 5mm x 1.2m x 48m (57.6m2 Roll)
Acuphon PhonoLay Acoustic Foam Underlay - 5mm x 1.2m x 48m (57.6m2 Roll) - Acuphon
Vendor
Acuphon
Regular price
£155.04 £186.05
Sale price
£155.04 £186.05
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£0.00
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Acuphon PhonoMat 22 Pro Max Acoustic Underlay Mat - 15mm x 1200mm x 1000mm
Acuphon PhonoMat 22 Pro Max Acoustic Underlay Mat - 15mm x 1200mm x 1000mm - Acuphon
Vendor
Acuphon
Regular price
£50.60 £60.72
Sale price
£50.60 £60.72
Regular price
£0.00
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per 
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Acuphon PhonoMat 12 Pro Acoustic Underlay Mat - 12mm x 1200mm x 1000mm
Acuphon PhonoMat 12 Pro Acoustic Underlay Mat - 12mm x 1200mm x 1000mm - Acuphon
Vendor
Acuphon
Regular price
£32.78 £39.34
Sale price
£32.78 £39.34
Regular price
£0.00
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per 
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Acuphon PhonoMat 7 Slimline Acoustic Underlay Mat - 9mm x 1200mm x 1000mm
Acuphon PhonoMat 7 Slimline Acoustic Underlay Mat - 9mm x 1200mm x 1000mm - Acuphon
Vendor
Acuphon
Regular price
£22.95 £27.54
Sale price
£22.95 £27.54
Regular price
£0.00
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per 
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Knauf Acoustic Partition Roll 100mm 2 x 600mm (12.36m2) x 480 Rolls - Full Load (20 Pallets)
Knauf Acoustic Partition Roll 100mm 2 x 600mm (12.36m2) x 480 Rolls - Full Load (20 Pallets) - Knauf Insulation
Vendor
Knauf
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
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Knauf Acoustic Partition Roll 75mm 2 x 600mm (17.4m2) x 480 Rolls - Full Load (20 Pallets)
Knauf Acoustic Partition Roll 75mm 2 x 600mm (17.4m2) x 480 Rolls - Full Load (20 Pallets) - Knauf Insulation
Vendor
Knauf
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
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per 
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Thermafleece SupaSoft Roll
Thermafleece SupaSoft Roll - Thermafleece
Vendor
Thermafleece
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
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per 
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Thermafleece CosyWool Roll
Thermafleece CosyWool Roll - Thermafleece
Vendor
Thermafleece
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
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per 
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Profloor Support Batten
Profloor Support Batten - All Thickness - Proctor Accessories
Vendor
Proctor
Regular price
from £5.56 £6.67
Sale price
from £5.56 £6.67
Regular price
£0.00
Unit price
per 
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Superfoil SFBA BB 4mm x 1.35m x 50m
Superfoil SFBA BB 4mm x 1.35m x 50m - Superfoil Insulation
Vendor
Superfoil
Regular price
£157.41 £188.89
Sale price
£157.41 £188.89
Regular price
£0.00
Unit price
per 
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Promat Masterboard 6mm x 1220mm x 2400mm (50 Boards)
Promat Masterboard 6mm x 1220mm x 2400mm - Promat
Vendor
Promat
Regular price
£2,857.86 £3,429.43
Sale price
£2,857.86 £3,429.43
Regular price
£0.00
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per 
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Promat Supalux 1.22m x 2.44m - All Sizes
Promat Supalux 1.22m x 2.4m - All Sizes - Promat
Vendor
Promat
Regular price
from £5,353.96 £6,424.75
Sale price
from £5,353.96 £6,424.75
Regular price
£0.00
Unit price
per 
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Actis Hybris 1200mm x 1145mm - All Sizes
Actis Hybris 1200mm x 1145mm - All Sizes - Actis All Insulation
Vendor
Actis
Regular price
from £814.40 £977.28
Sale price
from £814.40 £977.28
Regular price
£0.00
Unit price
per 
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Spacetherm CBS - All Sizes
Spacetherm CBS - All Sizes - Proctor Insulation
Vendor
Proctor
Regular price
from £19.95 £23.94
Sale price
from £19.95 £23.94
Regular price
£0.00
Unit price
per 
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Sheepwool Insulation Premium Roll - Sample Bundle
Sheepwool Insulation Premium Roll - Sample Bundle - Sheepwool Floor Insulation
Vendor
Sheepwool
Regular price
£5.00 £6.00
Sale price
£5.00 £6.00
Regular price
£0.00
Unit price
per 
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Karma Regupol Quietlay 2.25m x 1.15m x 5mm
Karma Regupol Quietlay 2.25m x 1.15m x 5mm - Karma Insulation
Vendor
Karma
Regular price
£17.20 £20.64
Sale price
£17.20 £20.64
Regular price
£0.00
Unit price
per 
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Karma Acoustilay 1.2m x 1.2m - All Sizes
Karma Acoustilay 3 1.2m x 1.2m - All Sizes - Karma Insulation
Vendor
Karma
Regular price
from £43.71 £52.45
Sale price
from £43.71 £52.45
Regular price
£0.00
Unit price
per 
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Unilin Thin-R 2.4m x 1.2m - All Sizes
Unilin Thin-R 2.4m x 1.2m - All Sizes - Unilin Insulation
Vendor
Unilin
Regular price
from £11.90 £14.28
Sale price
from £11.90 £14.28
Regular price
£0.00
Unit price
per 
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Recticel Eurothane Eurodeck 2.4m x 1.2m - All Sizes
Recticel Eurothane Eurodeck 2.4m x 1.2m - All Sizes - Recticel Insulation
Vendor
Recticel
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
Unit price
per 
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Masonry Fixings 10mm (Box of 200) - All Sizes
Masonry Fixings 10mm - All Sizes (Box of 200) - Build4less
Vendor
Wetherby
Regular price
from £22.27 £26.72
Sale price
from £22.27 £26.72
Regular price
£0.00
Unit price
per 
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4S Silicone 1.5mm K G White 25Kg
4S Silicone 1.5mm K G White 25Kg - Build4less External Wall Insulation
Vendor
Wetherby
Regular price
£70.20 £84.24
Sale price
£70.20 £84.24
Regular price
£0.00
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per 
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Acrylic 1.5mm K T White 61577 25kg
Acrylic 1.5mm K T White 61577 25kg - Build4less External Wall Insulation
Vendor
Wetherby
Regular price
£53.70 £64.44
Sale price
£53.70 £64.44
Regular price
£0.00
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per 
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Primer H White 22 Kg
Primer H White 22 Kg - Build4less External Wall Insulation
Vendor
Wetherby
Regular price
£76.38 £91.66
Sale price
£76.38 £91.66
Regular price
£0.00
Unit price
per 
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Weathercoat 422 Grey (68622) 20 Litres
Weathercoat 422 Grey (68622) 20kg - Build4less External Wall Insulation
Vendor
Wetherby
Regular price
£70.18 £84.22
Sale price
£70.18 £84.22
Regular price
£0.00
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per 
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Aluminium 2.5m Starter Track/ Base Profile - All Sizes
Aluminium 2.5m Starter Track/ Base Profile - All Sizes - Build4less Insulation
Vendor
Wetherby
Regular price
from £7.59 £9.11
Sale price
from £7.59 £9.11
Regular price
£0.00
Unit price
per 
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High Density EPS 200E 60mm x 600mm x 1200mm (7.20m2 / 10 sheet pack)
High Density EPS 200E External Wall Systems Sheet
Vendor
EPS
Regular price
£124.11 £148.93
Sale price
£124.11 £148.93
Regular price
£0.00
Unit price
per 
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Superfoil SF6 30mm x 1.2m x 10m
Superfoil SF6 25mm x 1.2m x 10m
Vendor
Superfoil
Regular price
£79.96 £95.95
Sale price
£79.96 £95.95
Regular price
£0.00
Unit price
per 
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Tyvek AirGuard Control 50m x 1.5m
Vendor
Tyvek
Regular price
£133.13 £159.76
Sale price
£133.13 £159.76
Regular price
£0.00
Unit price
per 
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Black Mountain Natuwool Rolls - All Sizes
Black Mountain Natuwool Rolls
Vendor
Black Mountain
Regular price
from £73.74 £88.49
Sale price
from £73.74 £88.49
Regular price
£0.00
Unit price
per 
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Black Mountain Natuwool Batts (1.2m x 0.4m) - All Sizes
Black Mountain Natuwool Batts
Vendor
Black Mountain
Regular price
from £35.41 £42.49
Sale price
from £35.41 £42.49
Regular price
£0.00
Unit price
per 
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Ecotherm Eco Torch 1.2m x 0.6m - All Thicknesses
Ecotherm Eco Torch
Vendor
Ecotherm
Regular price
from £42.26 £50.71
Sale price
from £42.26 £50.71
Regular price
£0.00
Unit price
per 
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Powerdeck F 1.2m x 0.6m - All Sizes
Powerdeck F
Vendor
Recticel
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
Unit price
per 
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PowerDeck U (1.2m x 0.6m) All Sizes
PowerDeck U (1.2m x 0.6m) All Sizes - Recticel Insulation
Vendor
Recticel
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
Unit price
per 
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Eco-Liner 1.2m x 2.4m - All Thicknesses
Eco-Liner (1.2m x 2.4m) All Sizes - Ecotherm Building Materials
Vendor
Ecotherm
Regular price
from £0.00 £0.00
Sale price
from £0.00 £0.00
Regular price
£0.00
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per 
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Insulation plays a crucial role in building construction, offering thermal efficiency, soundproofing, and fire resistance. Build4Less offers a comprehensive range of insulation products catering to various needs. Let's delve into the different types of insulation available and their practical uses.

Roof and Wall Insulation Panels

Composite Insulated Roof Panels

These panels, like the 333 Box Profile Composite, are ideal for roofing applications, offering excellent thermal performance and ease of installation. They come in various sizes and are suitable for both residential and commercial buildings.

General Purpose Insulation Boards

Products like Celotex GA4000 and Mannok Therm PIR boards are versatile and can be used in floors, walls, and roofs. These rigid boards provide high insulation values and are available in various thicknesses to meet different requirements.

Insulated Plasterboard

Insulated plasterboards, such as Celotex PL4000 and Kingspan Kooltherm, combine insulation and plasterboard, making them perfect for internal wall applications. They provide thermal insulation and a ready-to-decorate surface.

Specialised Insulation Products

Acoustic Insulation

Products like Knauf Acoustic Roll are designed to reduce sound transmission, making them ideal for use in walls and floors where sound insulation is a priority.

Thermal Bridging Boards

Celotex TB4000 is specifically designed to address thermal bridging, improving the energy efficiency of buildings by reducing heat loss at junctions and edges.

Aerogel Insulation

Spacetherm products, with their aerogel composition, offer superior thermal performance in a thinner profile, ideal for space-constrained applications.

Natural and Eco-Friendly Options

Sheepwool Insulation

100% Sheepwool Insulation rolls are an eco-friendly option, providing natural thermal and acoustic insulation. These are suitable for those looking for sustainable building materials.

Accessory Products

Foil Tape and Vapour Barriers

Foil tapes like SuperFOIL and Tyvek products are essential for sealing seams in foil-faced insulation to maintain continuity and performance. Vapour barriers help in controlling moisture ingress, enhancing the overall effectiveness of insulation.

Cavity Barriers and Firestops

Products like Timber Cavity Barrier and Party Wall Cavity Stop Socks are crucial for fire safety, preventing the spread of fire within cavity spaces.

Selecting the Right Insulation

When choosing insulation, consider the following:

  • Application Area: Roof, wall, or floor insulation have different requirements.
  • Thermal Performance: Higher R-values mean better insulation.
  • Acoustic Needs: If soundproofing is a concern, opt for specialised acoustic insulation.
  • Environmental Impact: Consider eco-friendly options like sheepwool for a lower environmental footprint.
  • Building Regulations: Ensure the product meets local building codes and regulations.

     

In conclusion, the right insulation product can significantly enhance the comfort, energy efficiency, and safety of a building. Build4Less offers a range of products to meet diverse insulation needs, ensuring quality and performance.

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